On This Day in Math
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http://pballew.blogspot.com/  


Pat Ballew  
Mathematically significant events, births, deaths, and more, posted every calendar day. Ballew's blog reveals his thoughts on teaching math. His links and explanations written using The Geometer's Sketchpad include triangle medians; angle bisectors in a triangle; three tangents to a circle; a minimum perimeter inscribed triangle; minimum length problems; a min/max problem; circumscribed triangles; the centroid; equations of lines; intercepts of lines; diagonals of a rhombus; lines in the plane (standard equation form); kissing circles; a Japanese temple problem; geometric centers; and a new discovery by Harold Stengel.  


Levels:  Middle School (68), High School (912), College 
Languages:  English 
Resource Types:  Problems/Puzzles, Geometer's Sketchpad, Web Interactive/Java 
Math Topics:  Equations, Conic Sections and Circles, Triangles and Other Polygons 
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